Telephone set base



FIG. 1 is a front, top and side perspective view of a telephone set base showing our new design;

FIG. 2 is a similar perspective view of a second embodiment thereof; and

FIG. 3 is a similar perspective view of a third embodiment thereof.

The surfaces of the undisclosed rear side and bottom side of all three embodiments are flat and unadorned, and elevational views of the sides opposite to those shown in the embodiments are mirror images of the respective disclosed sides. 

The ornamental design for a telephone set base, substantially as shown and described. 